Show POLICE ON GUARD I Chicago Catholic Priests Threatened Since Denver Tragedy Chicago March 1 Details of police olice were stationed during early mass in all of the Roman Catholic churches here today because of threats against the lives of priests In il letters received since the Denver tragedy The guards who scrutinized scrutinized scrutinized wore citizens clothing closely every person who entered the churches where trouble was wa feared and after the services began occupied posts close to the altar Special l pre precautions precautions precautions cautions were taken in Italian churches hurches in all parts of the city and In several Bohemian churches because of anti anticlerical anticlerical anticlerical clerical feeling known to exist among persons of those nationalities in Chi Chicago Chicago Chicago cago Less attention was paid to the large cathedrals because of the num number number number ber of policemen always in attendance at services ces in them No disturbance was ref ted at nt any ant an of or the churches c |